Year 231 (CCXXXI)

Year 231 (CCXXXI) was a common year starting on Saturday in the Julian calendar. It took place during the Roman Empire and the Three Kingdoms period in China, marked by continued military and political activity.

Overview

Year 231 (Roman numeral CCXXXI) is identified in modern chronology as a single year in the 3rd century of the Common Era. In the calendar system used across much of the Roman world at the time, it was classified as a common year that began on a Saturday under the Julian calendar. Contemporary records for specific events are uneven, so histories of this year are reconstructed from later chronicles, inscriptions and surviving administrative documents.

Calendar and dating

The Julian calendar, introduced by Julius Caesar in 45 BCE, was the prevailing civic calendar for Rome and its provinces in 231. Describing a year as "common" means it was not a leap year, containing 365 days. During the medieval adoption of Anno Domini dating, 231 became the conventional label for that year in Christian chronologies. Roman practice at the time also identified years by the names of serving consuls or by regnal years of emperors, which produced parallel systems of dating.

Political and military context

The third century was a period of frequent military activity and political stresses across Eurasia. Two broad regional contexts stand out for 231:

Roman Empire: The empire was governed by the Severan dynasty’s successors and faced routine border pressures and internal administrative challenges. Military logistics, frontier defense against Germanic and other groups, and imperial court politics all shaped affairs.
East Asia — Three Kingdoms era: In China, the former Han imperial structure had fractured into the rival polities known as Wei, Shu (Shu Han), and Wu. This era involved recurrent campaigns and strategic maneuvering among these states, with prominent military leaders and advisers active in the field.

Culture, economy and society

Across the Mediterranean and Eurasian zones, the early 200s continued to see active trade, urban life, and local cultural production. Cities remained administrative and commercial centers while rural economies supplied grain and manpower. In many regions, the preservation and copying of texts, religious practices, and local institutions persisted despite periodic disruptions from warfare or political change.

Records, notable figures and legacy

Specific births and deaths recorded for this single year are limited in the surviving sources; historians instead place emphasis on the careers of well-documented rulers and generals whose activities spanned several years. The year forms part of broader sequences—imperial reigns in Rome and military campaigns in China—that scholars use to understand transitions of power and the evolution of regional states. For further reference and chronological cross-checking, standard prosopographies and chronologies are typically consulted.